Fog-signaling apparatus.



5. A. PEDERSEN. FOG SIGNALING APPARATUS. APPLICATION FILED MAR. e, 1911.

1 34,729, Patented Aug. 6 1912.

Witnesses: Inventor:

Attur'neyj I I I SAP 2 5. e I 5 en COLUMBIA PLANOGRAPH COUWMHINGTON, D. c.

SUREN AUGUST PEDERSEN, 0F GI-IRISTIANIA, NORWAY.

FOG-SIGNALING- APPARATUS.

Specification of Letters Patent.

Patented Aug. 6, 1912.

Application filed March 9, 1911. Serial No. 613,287.

To all whom it may concern:

Be it known that I, SoRnN- AUGUST PEDER- SEN, a citizen of Norway, residing at Sorgenfrigaten 40, Christiania, Norway, have invented new and useful Improvements in Fig-Signaling Apparatus, of which the following is a specification.

My present invention has for its object to provide an arrangement by means of which regular fog signals on ships can be automatically generated.

The use of a steam-whistle to generate fog signals has hitherto been obtained through the whistle-line by hand.

. The invention consists essentially in the arrangement between the engine and the steam-whistle of a suitable connection, by means of which the engineoonveniently through a gearingautomatically operates the steam whistle at certain regular intervals.

To carry out my invention I may arrange that one of the moving parts of the engine, for instance the balance, and the ordinary line to the steam-whistle are so connected to each other by means of an apparatus-(gearing) driven from the said part of the engine that a pull on the cord is produced and consequently a whistle is effected period cally once a minute, or at any other desired interval.

One construction for carrying out the invention is illustrated by way of example in the accompanying drawing in which:

Figure 1 represents a side view, partially in section, of the apparatus in operative po sition. 2 represents the arrangement of cordlines on the ship-bridge.

The said apparatus and its connection to he engine can, of course, be constructed in many different ways. A suitable construction is represented in the drawing. Here the apparatus consists of an oscillating arm 1 which is loosely mounted on a shaft 2 and which by means of the pawl 4, pressed by the spring 3, rotates the pawl wheel 5. The said wheel is keyed to the shaft 2 which is conveniently supported in a bracket 7 and carries an arm 9 with an are shaped end, said arm being balanced by a counterweight 8. The are shaped end of said arm is adapted to engage with and swing upward the end 10, of a double arm pivoted on the pin 11, the other end 12 being connected through a cord 13 through the line 14 (Fig. 2) with the steam whistle. 15 is a counterpawl which is kept in mesh with the pawl wheel 5 i which can be fixed in different positions by means of a screw 18 and through a rigid rod 19 is connected conveniently to the balance of the engine.

During the movement of the engine the arm 1. is steadily moved up and down and consequently the pawl wheel 5 is intermittently rotated and the end of the arm 9 on each revolution strikes the end 10 of the double arm resting against the stopper 6 and thereby carries said end 10 upward (see Fig. 1) and gradually-as the cords 18 and 14 are pulled through the arm l2the steamwhistle is sounded. As soon as the end 10 is disengaged from the arm 9, the double arm falls back to the dotted position and the signal ceases until the said arm again engages the arm 10.

According to the number of revolutions of the engine the position of the sleeve 17 is adjusted on the arm 1, that is to say it is moved along said arm to a position closer to the shaft 2 the slower the engine moves. In this manner it is possible to so adjust the period between each whistle that for in stance one whistle is given every minute no matter what is the speed of the engine.

It is found convenient to give the pawl wheel 5 twice as many teeth as the normal number of revolutions per minute of the machine. The cordlines on the ship bridge may be arranged as shown in Fig. 2.

If, the steam whistle-line 20 with handle 21 011 the bridge were directly connected to the cord 14, which is constantly pulled because of the action of the said apparatus, an order-signal from the bridge would easily interfere with or be given off so close before a fogsignal, that the order could be misunderstood. When, therefore the cord 20 is pulled, it is very desirable that the connection between the cord 14 and the apparatus described should be released. For this purpose the cord 20 is connected to the end 22 of a double arm, the other end 23 of which is hookshaped and engages the apparatuscord 13, while the middle point 24 of which is pivotally connected to a link 25 on the cord 14.

As long as the apparatus is in operation tle, automatic means effective on said conbn fogsignals shall be given automatically,

and the end of the cord 13 is hooked on to the hook 23, the periodical pull on the cord 13 is transferred to the whistle-cord 14: through 23, 24 and 25. When, l1owever,1the cord 20 is pulled, the arm 22, 23 is turned into such a position that the hook 23 disengages the apparatus-cord 13 and the pull on cord 20 is through 22, 24. and 25 transferred to the whistle-cord l4 undisturbed by the further motion of the engine. 'If now later the cord 18 must again be hooked on to the hook-23.

Having now described my invention, what I claim as new and. desire to secure by Lettors Patent is:

1. Fog signaling apparatus comprising a whistle, a connection for operating the Whistle, and automatic means effective on. said connection for normally actuating the whistle at regularly recurringintervals, said connection including a releasing device for rendering the automaticmeans inoperative on the whistle when the connection is manually operated. I 2. Fog signaling apparatus comprising a whistle, a connection for operating the whisn'ec'tion for normally actuating the whistle at regularly recurring intervals, a handle for manually operating the Whistle, and a releasing device connected to said connec- Copies of this patent may be obtained for and a lever arranged, upon actuation by said arm, to normally'operate sald whistle, the

tion, to said handle, and to said automatic means in such manner that the automatic means is rendered inoperative on the whistle when said handle is manually operated.

3. In fog signaling apparatus, the combination. with a whistle, and means for manually operating the whistle, of a rotatable actuating arm, means for rotating said arm,

whistle operating means including a releasing device for rendering said lever inoperative when the whistle is manually operated.

4:. In fog signaling apparatus, the combination with a Whistle, and a handle for manually operating the whistle, of a rotatable actuating arm, means for uniformly rotating said arm step by step, a lever arranged, 5 upon actuation by said arm, to normally operate the whistle,,and a releasing device havinga connection to the handle, another connection to the lever, and third connection to the whistle so arranged that the lever is rendered inoperative when the wlnstle is manually operated.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

S O REN AUGUST PEDERSEN. Witnesses:- i p v AxnL LAHN, Moon1vo Boson.

five cents each-grey addretsi ng the Commissioner of Patents, Washington, D. G. 

